-3(6-3y)-2(6+2y)=20

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Solution for -3(6-3y)-2(6+2y)=20 equation: 


Simplifying
-3(6 + -3y) + -2(6 + 2y) = 20
(6 * -3 + -3y * -3) + -2(6 + 2y) = 20
(-18 + 9y) + -2(6 + 2y) = 20
-18 + 9y + (6 * -2 + 2y * -2) = 20
-18 + 9y + (-12 + -4y) = 20

Reorder the terms:
-18 + -12 + 9y + -4y = 20

Combine like terms: -18 + -12 = -30
-30 + 9y + -4y = 20

Combine like terms: 9y + -4y = 5y
-30 + 5y = 20

Solving
-30 + 5y = 20

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '30' to each side of the equation.
-30 + 30 + 5y = 20 + 30

Combine like terms: -30 + 30 = 0
0 + 5y = 20 + 30
5y = 20 + 30

Combine like terms: 20 + 30 = 50
5y = 50

Divide each side by '5'.
y = 10

Simplifying
y = 10

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